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Mottramite and Pyrope Optical Properties


Pyrope and Mottramite Optical Properties


Optical Properties

Luster
Greasy  
Greasy, Vitreous  

Pleochroism
Visible X=Y= canary yellow to greenish yellow  
None  

Dispersion
0.04  
36
0.02  
99+

Transparency
-  
-  

Refractive Index
2.170  
1.720-1.756  

Optic Character
-  
-  

Crystal System
Orthorhombic  
cubic  

Birefringence
0.150  
-9999  

Clarity
-  
TransparentUlrich Henn and Claudio C. Milisenda  

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Mottramite and Pyrope Optic Character

Mottramite and Pyrope optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Mottramite and Pyrope Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Mottramite and Pyrope optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Mottramite and Pyrope Transparency

Similar to their colors, Mottramite and Pyrope transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Mottramite is while Mottramite is in appearance.

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